Invention Grant
- Patent Title: Handover method, apparatus, and system
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Application No.: US16719483Application Date: 2019-12-18
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Publication No.: US10986542B2Publication Date: 2021-04-20
- Inventor: Jiangwei Ying
- Applicant: HUAWEI TECHNOLOGIES CO., LTD.
- Applicant Address: CN Guangdong
- Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee Address: CN Guangdong
- Agency: Womble Bond Dickinson (US) LLP
- Priority: CN201710465053.4 20170619
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04W36/08 ; H04W36/30 ; H04W36/38 ; H04W88/04

Abstract:
This application discloses a handover method to hand over relay UE and remote UE between different eNBs. The handover method includes: a source eNB determines based on a measurement report of the relay UE, to hand over the relay UE to a target eNB; sends a first handover required message to a source MME of the relay UE and sends a second handover required message to a source MME of the remote UE; the source MME sends a mobility management context of the remote UE and a mobility management context of the relay UE to a target MME to which the target eNB belongs; the target MME receives a redirection request message from the source MME; and sends information about the remote UE and information about the relay UE to the target eNB.
Information query